Thread: Material differences btween a NPR 4BD1T and a ex-army 4BD1?

Originally Posted by Shingleback

Yep, and it's still going strong

Thats right, you have matts on defender, great car that one.

Originally Posted by Vern

Thats right, you have matts on defender, great car that one.

It's changed a fair bit, but I haven't touched the motor or turbo, the fuel screw is still in the spare parts box 😁 I'm still amazed at the low end seamless torque of these engines, you get used to it, but then drive something else and think " this is gutless! "

Originally Posted by Shingleback

It's changed a fair bit, but I haven't touched the motor or turbo, the fuel screw is still in the spare parts box I'm still amazed at the low end seamless torque of these engines, you get used to it, but then drive something else and think " this is gutless! "

Yeah, i wish i never gave him that turbo now! My one the same had a slightly bent impeller shaft so mad a horrible noise, but gee it worked well.

I'm exploring another option....might need to swap blocks, mine may be toast. Looking at using a NPR block.

Are the bolts patterns on the rear of all 4BD1/T blocks all identical (not flywheel housing to g/box)?

Likewise are the engine mount holes in the same spot...not a biggie but good to know.

Originally Posted by Fubar

I'm exploring another option....might need to swap blocks, mine may be toast. Looking at using a NPR block.

Are the bolts patterns on the rear of all 4BD1/T blocks all identical (not flywheel housing to g/box)?

Likewise are the engine mount holes in the same spot...not a biggie but good to know.

All 4b blocks are the same. If i was to do mine again i would look for a 4BE1 personally

Originally Posted by Vern

All 4b blocks are the same. If i was to do mine again i would look for a 4BE1 personally

Thanks...I'll look into it.

If i was to do mine again i would look for a 4BE1 personally

And actively looking for a 4BE1 or 4BD1T now.

Scrapped the 4BD1 block...bent rods and chipped internally.

Originally Posted by Fubar

And actively looking for a 4BE1 or 4BD1T now.

Scrapped the 4BD1 block...bent rods and chipped internally.

I know where there is a bd1t motor, requires rings and bearing, complete engine, been dismantled for rebuild, think project came to a halt. Bores are good and true.